Stainless Steel 5mm Deep U Groove Ball Bearings Pack of 2, Pulley Bearing Wheel Rail Ball Bearings Wheel

These bearings are a perfect replacement for the nylon pulleys that are at the top of the mast on my sailboat! Im looking forward to raising and lowering my sail with ease!

As described, arrived early then estimated. Will buy again if needed

There nice.Super smooth and heavy duty.Used them for an anchor system on a drift boat that I’m building

Bought these to replace one I had that wore down. These worked great so far. The kids have only used the zip line a few times since Ive replaced it with these so time will tell us on the longevity.

Used these on the mast of a sailboat. Perfect fit. It helped that the dimensions were clearly shown in a photo. Bearings rotate smoothly.

These salvaged our zip line, which has been neglected by the kids because it no longer zipped. The new bearings where a perfect fit, and the zip line works perfectly now.

Solid bearings. Being used on a neighborhood zip line outdoors. After 2 months they’re holding up great.

These are the best I can find. I wish they were cheaper but quality sometimes costs.

Good size but are u groove not v groove like advertised

Great product, rolls well, no wobble, precision made, would buy again for this and other projects. Highly recommend. Also really nice a 1/4 inch stainless steel bolt fit just right.